The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2013
Filed:
Jun. 29, 2011
Applicant:
Lo-yueh Lin, Dongshan Shiang, TW;
Inventor:
Lo-Yueh Lin, Dongshan Shiang, TW;
Assignee:
Macronix International Co., Ltd., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device includes a substrate and a plurality of rows of memory cells. The substrate comprises a plurality of isolation structures and a plurality of active regions. Each of the active regions is spaced apart from another active region by one of the isolation structures. In a cross-section of the substrate between two rows of memory cells in a direction parallel to the two rows of memory cells, a maximum height of each isolation structure with respect to a bottom of the substrate is lower than or equal to minimum heights of active regions adjacent thereto.